1 files changed, 35 insertions, 0 deletions
diff --git a/src/utils/crypto.rs b/src/utils/crypto.rs
new file mode 100644
index 0000000..9f0ee82
--- /dev/null
+++ b/src/utils/crypto.rs
@@ -0,0 +1,35 @@
+use base64::{engine::general_purpose::STANDARD, Engine};
+use hmac::{Hmac, Mac};
+use sha2::{Digest, Sha256};
+
+pub fn sha256(input: &str) -> String {
+    let mut hasher = Sha256::new();
+    hasher.update(input);
+    format!("{:x}", hasher.finalize())
+}
+
+pub fn hmac_sha256(key: &[u8], msg: &str) -> Vec<u8> {
+    let mut mac = Hmac::<Sha256>::new_from_slice(key).expect("HMAC can take key of any size");
+    mac.update(msg.as_bytes());
+    mac.finalize().into_bytes().to_vec()
+}
+
+pub fn hex_encode(bytes: &[u8]) -> String {
+    bytes
+        .iter()
+        .fold(String::new(), |acc, b| acc + &format!("{:02x}", b))
+}
+
+pub fn encode_uri(uri: &str) -> String {
+    uri.split('/')
+        .map(|v| urlencoding::encode(v))
+        .collect::<Vec<_>>()
+        .join("/")
+}
+
+pub fn base64_encode<T: AsRef<[u8]>>(input: T) -> String {
+    STANDARD.encode(input)
+}
+pub fn base64_decode<T: AsRef<[u8]>>(input: T) -> Result<Vec<u8>, base64::DecodeError> {
+    STANDARD.decode(input)
+}